Volume III in the series Studies in Social Psychology in World War II. The Army proved to be a worldwide laboratory for film research and research on other means of getting across both technical information and indoctrination. Findings are of direct importance to film-makers, educators. Originally published in 1971. The Princeton Legacy Library uses the latest print-on-demand technology to again make available previously out-of-print books from the distinguished backlist of Princeton University Press. These editions preserve the original texts of these important books while presenting them in durable paperback and hardcover editions. The goal of the Princeton Legacy Library is to vastly increase access to the rich scholarly heritage found in the thousands of books published by Princeton University Press since its founding in 1905.